Title |
A Study on the Lifting Progress for Composite Precast Concrete Members of Green Frame |
Authors |
Joo, Jin-kyu ; Kim, shin-eun ; Lee, Gun-Jea ; Kim, Sun-kuk ; Lee, Sung-Ho |
DOI |
http://dx.doi.org/10.6106/KJCEM.2012.13.3.034 |
Keywords |
green frame ; composite precast concrete ; apartment buildings ; lifting progress |
Abstract |
Green frame technology intended to facilitate the remodeling of apartment housing complexes in Korea and extend their service life has been developed. Green frame design is a Rahmen structure using composite precast concrete members and, unlike a bearing-wall structure, lifting and installing structural members accounts for major steps of structural construction. Therefore, if green frame structure construction is to be scheduled appropriately, systematic lifting plan needs to be developed in advance. Development of lifting plan also requires unit lifting process of composite PC members (columns and beams) that consist of green frame to be analyzed first. Therefore, this study attempts to analyze the lifting process of composite PC members used in green frame structure. To that end, lifting procedure and time of composite PC column and beam are estimated and applied to a project case to analyze the lifting cycle of reference floor. Outcomes produced herein will be used as key data for development of lifting plan in subsequent green frame structure construction. |